Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual é a diferença total para as equipes que jogaram menos de 6 jogos?
 ###Tabelas: CREATE TABLE england_in_south_africa (england_in_south_africa_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Home captain VARCHAR, Away captain VARCHAR, Venue VARCHAR, Result VARCHAR) CREATE TABLE 1980s (1980s_id AUTO_INCREMENT PRIMARY KEY, Order INT, Name VARCHAR, Seasons VARCHAR, Games INT, Goals INT) CREATE TABLE number_of_children_involved_in_ilo_categories_of_work_by_age_and_gender (number_of_children_involved_in_ilo_categories_of_work_by_age_and_gender_id AUTO_INCREMENT PRIMARY KEY, All Children ('000s) INT, Economically Active Children ('000s) INT, Economically Active Children (%) INT, Child Labour ('000s) INT, Child Labour (%) INT, Children In Hazardous Work ('000s) INT, Children In Hazardous Work (%) INT) CREATE TABLE europe_pool_a (europe_pool_a_id AUTO_INCREMENT PRIMARY KEY, Club VARCHAR, Played INT, Lost INT, Drawn INT, Against INT, Diff. INT, Points INT) CREATE TABLE ministries (ministries_id AUTO_INCREMENT PRIMARY KEY, Order INT, Name VARCHAR, Party VARCHAR, Constituted VARCHAR, Concluded VARCHAR)  
SELECT SUM Diff. FROM europe_pool_a WHERE Played < 6